EP0312690A2 - Réseau radio - Google Patents

Réseau radio Download PDF

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Publication number
EP0312690A2
EP0312690A2 EP19880108557 EP88108557A EP0312690A2 EP 0312690 A2 EP0312690 A2 EP 0312690A2 EP 19880108557 EP19880108557 EP 19880108557 EP 88108557 A EP88108557 A EP 88108557A EP 0312690 A2 EP0312690 A2 EP 0312690A2
Authority
EP
European Patent Office
Prior art keywords
radio
reception quality
radio network
transmission power
transmission
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19880108557
Other languages
German (de)
English (en)
Other versions
EP0312690A3 (fr
Inventor
Hans-Peter Dipl.-Ing. Ketterling
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0312690A2 publication Critical patent/EP0312690A2/fr
Publication of EP0312690A3 publication Critical patent/EP0312690A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters

Definitions

  • the invention relates to a radio network according to the preamble of claim 1.
  • a radio network is known (Funkschau, 1986, number 2, pages 43 ... 48), which is divided into radio cells and whose mobile stations communicate the measured reception field strength to the respective base station so that it automatically adapts its transmission power to the respective quality of the transmission path.
  • a certain minimum quality is always achieved, that is to say a certain minimum signal-to-noise ratio or, in the case of data transmission, the lowest possible bit error rate without the application of more transmission power than is absolutely necessary.
  • the above-described adaptation of the transmission power to the prevailing transmission conditions can be carried out with the stationary and / or the mobile radio transmitting and receiving stations.
  • the invention is based, to reduce the co-channel, adjacent channel and inter-channel modulation interference with less effort in a radio network according to the preamble of claim 1.
  • the advantages achieved with the invention are, in particular, that the interferences mentioned are reduced without the need for complex central evaluation and signaling between the radio stations, as provided for by the Nordic Mobile Telephone (NMT) or the network C of the Irish BIOpost is.
  • NMT Nordic Mobile Telephone
  • a further significant advantage results from the use of hand-held radios, for which the available operating time increases, because the battery consumption associated with a large transmission power only occurs at times when poor transmission quality is determined.
  • Another advantage is that it is possible to retrofit or upgrade existing stationary or mobile radio transmission and reception stations and that the described method can be used both for public and for non-public networks of mobile radio.
  • the block diagram 10 designate a preferably stationary radio transmission and reception station - hereinafter referred to as base station and 11 and 12 each preferably a mobile radio transmission and reception station - hereinafter referred to as mobile station.
  • the base station and the mobile stations belong to a radio network comprising several of these stations.
  • the base station 10 has a transmitting part 13 and a receiving part 14 as well as a transmitting-receiving antenna 15 and a noise signal evaluator 16 connected to the receiving part 14, which is connected to the transmitting part 13 via a threshold switch 17 and a power control device 18.
  • the mobile station 11 has basically the same structure as the fixed station.
  • the transmitting part with 20 the receiving part with 21, the transmitting and receiving antenna with 22, the noise signal evaluator with 23, the threshold switch with 24 and the power control device with 25.
  • the base station 10 and the mobile station 11 described above perform the following functions in addition to the usual functions.
  • Each radio station monitors the reception quality of the radio connection by evaluating the signal-to-noise ratio or noise evaluation by the noise signal evaluator 16 or 23.
  • the noise signal evaluator outputs an evaluation voltage at its output, the value of which depends on the respective reception quality of the radio connection. If, for example, the evaluation voltage falls below a predetermined minimum value with poor reception quality, to which the threshold switch 17 or 24 is set, then this emits a first control voltage, which causes the power control device 18 or 25 to increase the transmission power of the transmitting part 13 or 20 by a predetermined value increase.
  • the latter then outputs a second control voltage, which causes the power control device 18 or 20 to increase the transmission power of the transmission part by one reduce the predetermined value. It is advisable to provide a suitable averaging over a suitable period of time in the noise signal evaluator in order to avoid instabilities. This type of influence on the transmission power has the result that, on the one hand, a sufficient quality of the connection is guaranteed for the radio connection in question, as long as the mobile station is within range of the base station, and on the other hand, no more transmission power is required than is necessary.
  • the power control according to the invention can also be used if the dimensioning of the stages is determined by one-off tests and a suitable temporal averaging of the noise signal evaluation is carried out.
  • the monitoring of the reception quality and the control of the transmission power in the fixed station or in the mobile stations can also be carried out in a manner known to the person skilled in the art by other devices, for example by a microprocessor circuit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
EP88108557A 1987-10-23 1988-05-28 Réseau radio Withdrawn EP0312690A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873736020 DE3736020A1 (de) 1987-10-23 1987-10-23 Funknetz
DE3736020 1987-10-23

Publications (2)

Publication Number Publication Date
EP0312690A2 true EP0312690A2 (fr) 1989-04-26
EP0312690A3 EP0312690A3 (fr) 1990-06-13

Family

ID=6338989

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88108557A Withdrawn EP0312690A3 (fr) 1987-10-23 1988-05-28 Réseau radio

Country Status (2)

Country Link
EP (1) EP0312690A3 (fr)
DE (1) DE3736020A1 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4003820A1 (de) * 1987-11-20 1991-08-14 Int Mobile Machines Drahtloses digitales telefonsystem
EP0462952A1 (fr) * 1990-06-21 1991-12-27 Telefonaktiebolaget L M Ericsson Procédé de régulation de la puissance dans un système de communication numérique mobile
EP0548939A3 (en) * 1991-12-26 1994-09-21 Nec Corp Transmission power control system capable of keeping signal quality constant in mobile communication network
US5495508A (en) * 1987-11-20 1996-02-27 Interdigital Technology Corporation Base station emulator
US5710981A (en) * 1995-05-23 1998-01-20 Ericsson Inc. Portable radio power control device and method using incrementally degraded received signals
WO1999029048A1 (fr) * 1997-12-04 1999-06-10 Qualcomm Incorporated Procede et appareil permettant d'effectuer une commande de puissance ternaire dans un systeme de communication
US5930297A (en) * 1989-11-20 1999-07-27 Interdigital Technology Corporation Base station emulator
US6282180B1 (en) 1985-03-20 2001-08-28 Interdigital Technology Corporation Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels
EP1133070A3 (fr) * 2000-03-02 2001-09-19 Matsushita Electric Industrial Co., Ltd. Procédé et appareil de réglage de la puissance d'émission dans un système de radiocommunication
US6711223B2 (en) 1987-11-20 2004-03-23 Interdigital Technology Corporation Base station emulator
US20230209586A1 (en) * 2020-05-26 2023-06-29 Telefonaktiebolaget Lm Ericsson (Publ) Location aware radio resource management in co-existing public and non-public communication networks using predictions
CN120547515A (zh) * 2025-05-21 2025-08-26 河北博图通信科技有限公司 基于隧道内分布式基站的北斗定位信息传输系统及方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4428729C2 (de) * 1994-08-15 1998-08-20 Deutsche Telekom Mobil Verfahren und Anordnung zur bidirektionalen Vermessung von Funkkanälen
DE10161507A1 (de) * 2001-12-14 2003-07-03 Austriamicrosystems Ag Kommunikationssystem mit einem ersten und einem zweiten Sendeempfänger und Verfahren zu dessen Betrieb

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3417233A1 (de) * 1984-05-10 1985-11-14 Standard Elektrik Lorenz Ag, 7000 Stuttgart Funksystem
US4613990A (en) * 1984-06-25 1986-09-23 At&T Bell Laboratories Radiotelephone transmission power control

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6771667B2 (en) 1985-03-20 2004-08-03 Interdigital Technology Corporation Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels
US6282180B1 (en) 1985-03-20 2001-08-28 Interdigital Technology Corporation Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels
US6842440B2 (en) 1985-03-20 2005-01-11 Interdigital Technology Corporation Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels
US6954470B2 (en) 1985-03-20 2005-10-11 Interdigital Technology Corporation Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels
US6393002B1 (en) 1985-03-20 2002-05-21 Interdigital Technology Corporation Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels
US5495508A (en) * 1987-11-20 1996-02-27 Interdigital Technology Corporation Base station emulator
US5625653A (en) * 1987-11-20 1997-04-29 Interdigital Technology Corporation Base station emulator
DE4003820A1 (de) * 1987-11-20 1991-08-14 Int Mobile Machines Drahtloses digitales telefonsystem
US7106819B1 (en) 1987-11-20 2006-09-12 Interdigital Technology Corporation Plural subscriber system utilizing synchronized timeslots on a single frequency
DE4003820C2 (de) * 1987-11-20 1998-11-26 Interdigital Tech Corp Drahtloses digitales Funktelefonsystem
US6711223B2 (en) 1987-11-20 2004-03-23 Interdigital Technology Corporation Base station emulator
US5930297A (en) * 1989-11-20 1999-07-27 Interdigital Technology Corporation Base station emulator
EP0462952A1 (fr) * 1990-06-21 1991-12-27 Telefonaktiebolaget L M Ericsson Procédé de régulation de la puissance dans un système de communication numérique mobile
US5241690A (en) * 1990-06-21 1993-08-31 Telefonaktiebolaget L M Ericsson Method for regulating power in a digital mobile telephony system
EP0548939A3 (en) * 1991-12-26 1994-09-21 Nec Corp Transmission power control system capable of keeping signal quality constant in mobile communication network
US5710981A (en) * 1995-05-23 1998-01-20 Ericsson Inc. Portable radio power control device and method using incrementally degraded received signals
US6411799B1 (en) 1997-12-04 2002-06-25 Qualcomm Incorporated Method and apparatus for providing ternary power control in a communication system
WO1999029048A1 (fr) * 1997-12-04 1999-06-10 Qualcomm Incorporated Procede et appareil permettant d'effectuer une commande de puissance ternaire dans un systeme de communication
EP1748575A1 (fr) * 1997-12-04 2007-01-31 Qualcomm Incorporated Procédé et appareil permettant d'effectuer une commande de puissance ternaire dans un système de communication
EP1133070A3 (fr) * 2000-03-02 2001-09-19 Matsushita Electric Industrial Co., Ltd. Procédé et appareil de réglage de la puissance d'émission dans un système de radiocommunication
US20230209586A1 (en) * 2020-05-26 2023-06-29 Telefonaktiebolaget Lm Ericsson (Publ) Location aware radio resource management in co-existing public and non-public communication networks using predictions
US12376139B2 (en) * 2020-05-26 2025-07-29 Telefonaktiebolaget Lm Ericsson (Publ) Location aware radio resource management in co- existing public and non-public communication networks using predictions
CN120547515A (zh) * 2025-05-21 2025-08-26 河北博图通信科技有限公司 基于隧道内分布式基站的北斗定位信息传输系统及方法

Also Published As

Publication number Publication date
DE3736020A1 (de) 1989-05-03
EP0312690A3 (fr) 1990-06-13

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